/***************************************************************************
 *   Copyright (C) 2006 by Grzegorz Latarowski                             *
 *   g.latarowski@gmail.com                                                *
 *                                                                         *
 *   Project: AutoStop (kodowa nazwa do zmiany)                            *
 *                                                                         *
 ***************************************************************************/



#include <QtGui>

#include "gmovieplayer.h"



// ===========================================================================
//                              MainWindow
// ===========================================================================




// --------------------- GMoviePlayer() --------------------------------------
GMoviePlayer::GMoviePlayer(QWidget *parent)
    : QDialog(parent)
{
    createMovieWindow();
}
// ---------------------------------------------------------------------------


// --------------------- GMoviePlayer() --------------------------------------
GMoviePlayer::GMoviePlayer(QString fileName, QWidget *parent)
    : QDialog(parent)
{
    createMovieWindow();
    
    openButton->setVisible(false);
    movie->stop();
    movieLabel->setMovie(movie);
    movie->setFileName(fileName);
    movie->start();

}
// ---------------------------------------------------------------------------


// ------------------------- createMovieWindow() ------------------------------
void GMoviePlayer::createMovieWindow()
{
    movie = new QMovie(this);
    movie->setCacheMode(QMovie::CacheAll);

    movieLabel = new QLabel(QString::fromUtf8("Nie załadowano żadnego filmu"));
    movieLabel->setAlignment(Qt::AlignCenter);
    movieLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
    movieLabel->setBackgroundRole(QPalette::Dark);
    movieLabel->setAutoFillBackground(true);

    createControls();
    createButtons();

    connect(movie, SIGNAL(frameChanged(int)), this, SLOT(updateFrameSlider()));
    connect(movie, SIGNAL(stateChanged(QMovie::MovieState)),
            this, SLOT(updateButtons()));
    connect(fitCheckBox, SIGNAL(clicked()), this, SLOT(fitToWindow()));
    connect(frameSlider, SIGNAL(valueChanged(int)), this, SLOT(goToFrame(int)));
    connect(speedSpinBox, SIGNAL(valueChanged(int)),
            movie, SLOT(setSpeed(int)));
    connect(movie, SIGNAL(frameChanged(int)), this, SLOT(updateFrameBox(int)));

    mainLayout = new QVBoxLayout;
    mainLayout->addWidget(movieLabel);
    mainLayout->addLayout(controlsLayout);
    mainLayout->addLayout(buttonsLayout);
    setLayout(mainLayout);

    updateFrameSlider();
    updateButtons();

    setWindowTitle(QString::fromUtf8("Odtwarzacz filmów"));
    resize(400, 400);
    
}
// ---------------------------------------------------------------------------


// ----------------------- createControls() ----------------------------------
void GMoviePlayer::createControls()
{
    fitCheckBox = new QCheckBox(QString::fromUtf8("Dopasuj do rozmiaru okna"));

    frameLabel = new QLabel(QString::fromUtf8("Bierząca klatka:"));
 
    frameSlider = new QSlider(Qt::Horizontal);
    frameSlider->setTickPosition(QSlider::TicksBelow);
    frameSlider->setTickInterval(10);

    speedLabel = new QLabel(QString::fromUtf8("Szybkość:"));

    speedSpinBox = new QSpinBox;
    speedSpinBox->setRange(1, 9999);
    speedSpinBox->setValue(100);
    speedSpinBox->setSuffix("%");

    controlsLayout = new QGridLayout;
    controlsLayout->addWidget(fitCheckBox, 0, 0, 1, 2);
    controlsLayout->addWidget(frameLabel, 1, 0);
    controlsLayout->addWidget(frameSlider, 1, 1, 1, 2);
    controlsLayout->addWidget(speedLabel, 2, 0);
    controlsLayout->addWidget(speedSpinBox, 2, 1);
    
    frameBox = new QLabel(movieLabel);
    frameBox->setFixedSize(30, 30);
    frameBox->setAlignment(Qt::AlignCenter);
    frameBox->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
    frameBox->setBackgroundRole(QPalette::Dark);
    frameBox->setAutoFillBackground(true);
}
// ---------------------------------------------------------------------------


// --------------------- createButtons() -------------------------------------
void GMoviePlayer::createButtons()
{
    QSize iconSize(36, 36);

    openButton = new QToolButton;
    openButton->setIcon(QIcon(":/images/player_eject.png"));
    openButton->setIconSize(iconSize);
    openButton->setToolTip(QString::fromUtf8("Otwórz plik"));
    connect(openButton, SIGNAL(clicked()), this, SLOT(open()));

    playButton = new QToolButton;
    playButton->setIcon(QIcon(":/images/player_play.png"));
    playButton->setIconSize(iconSize);
    playButton->setToolTip(QString::fromUtf8("Odtwarzaj"));
    connect(playButton, SIGNAL(clicked()), movie, SLOT(start()));

    pauseButton = new QToolButton;
    pauseButton->setCheckable(true);
    pauseButton->setIcon(QIcon(":/images/player_pause.png"));
    pauseButton->setIconSize(iconSize);
    pauseButton->setToolTip(QString::fromUtf8("Pauza"));
    connect(pauseButton, SIGNAL(clicked(bool)), movie, SLOT(setPaused(bool)));

    stopButton = new QToolButton;
    stopButton->setIcon(QIcon(":/images/player_stop.png"));
    stopButton->setIconSize(iconSize);
    stopButton->setToolTip(QString::fromUtf8("Stop"));
    connect(stopButton, SIGNAL(clicked()), movie, SLOT(stop()));

    quitButton = new QToolButton;
    quitButton->setIcon(QIcon(":/images/exit.png"));
    quitButton->setIconSize(iconSize);
    quitButton->setToolTip(QString::fromUtf8("Zakończ"));
    connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));

    buttonsLayout = new QHBoxLayout;
    buttonsLayout->addStretch();
    buttonsLayout->addWidget(openButton);
    buttonsLayout->addWidget(playButton);
    buttonsLayout->addWidget(pauseButton);
    buttonsLayout->addWidget(stopButton);
    buttonsLayout->addWidget(quitButton);
    buttonsLayout->addStretch();
}
// ---------------------------------------------------------------------------




// ------------------------ open() -------------------------------------------
void GMoviePlayer::open()
{
    QString fileName = QFileDialog::getOpenFileName(this,
            QString::fromUtf8("Otwórz film"),
            currentMovieDirectory);
    if (!fileName.isEmpty()) {
        currentMovieDirectory = QFileInfo(fileName).path();

        movie->stop();
        movieLabel->setMovie(movie);
        movie->setFileName(fileName);
        movie->start();

        updateFrameSlider();
        updateButtons();
    }
}
// ---------------------------------------------------------------------------


// --------------------- updateFrameBox() ------------------------------------
void GMoviePlayer::updateFrameBox(int frameNumber)
{
    QString text;
    text.setNum(frameNumber);
    frameBox->setText(text);
}
// ---------------------------------------------------------------------------
        

// --------------------- goToFrame() -----------------------------------------
void GMoviePlayer::goToFrame(int frame)
{
    movie->jumpToFrame(frame);
}
// ---------------------------------------------------------------------------


// ----------------------- fitToWindow() -------------------------------------
void GMoviePlayer::fitToWindow()
{
    movieLabel->setScaledContents(fitCheckBox->isChecked());
}
// ---------------------------------------------------------------------------


// ----------------------- updateFrameSlider() -------------------------------
void GMoviePlayer::updateFrameSlider()
{
    bool hasFrames = (movie->currentFrameNumber() >= 0);

    if (hasFrames) {
        if (movie->frameCount() > 0) {
            frameSlider->setMaximum(movie->frameCount() - 1);
        } else {
            if (movie->currentFrameNumber() > frameSlider->maximum())
                frameSlider->setMaximum(movie->currentFrameNumber());
        }
        frameSlider->setValue(movie->currentFrameNumber());
    } else {
        frameSlider->setMaximum(0);
    }
    frameLabel->setEnabled(hasFrames);
    frameSlider->setEnabled(hasFrames);
}
// ---------------------------------------------------------------------------


// ----------------------- updateButtons() -----------------------------------
void GMoviePlayer::updateButtons()
{
    playButton->setEnabled(movie->isValid() && movie->frameCount() != 1
            && movie->state() == QMovie::NotRunning);
    pauseButton->setEnabled(movie->state() != QMovie::NotRunning);
    pauseButton->setChecked(movie->state() == QMovie::Paused);
    stopButton->setEnabled(movie->state() != QMovie::NotRunning);
}
// ---------------------------------------------------------------------------







